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United States Submarine Losses

During the Pacific War, 1941 to 1945


Final Patrols:  Submarines Lost in July, August, & September During World War II

(Listed in alphabetical order)

on eternal patrol

USS Bullhead (SS-332)

USS Cisco (SS-290)

USS Flier (SS-250)


USS Grayling (SS-209)

USS Grunion (SS-216)

USS Harder (SS-257)

USS Pompano (SS-181)


USS Robalo (SS-273)

USS S-28 (SS-133)

USS S-39 (SS-144)


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A Noteworthy Quote

"The improvement of submarine engines throughout the war resulted in an overall increase in maximum surface speed of about two knots, without significant growth in the size or weight of the engines and with ever-greater reliability. Two knots may not seem much to a surface-ship sailor - but it made all the difference in the world to a submariner trying to get into a friendly rain squall to hide from some very unfriendly Japanese patrol boats or destroyers. By the end of the war, submarine engines weighed only eighteen pounds per horsepower and had demonstrated their ability to perform under the most arduous service conditions."

Quoted from the book The Fleet Submarine in the U. S. Navy, written by the late John D. Alden, Commander, U. S. Navy (Retired). Commander Alden died peacefully at his home in Slingerlands, New York, on February 20, 2014. He was 92.